Last updated: August 23, 2025
In December, the average temperature in San Giovanni, Italy hovers around -7°C (20°F), showcasing the region's chilly embrace. Expect a minimum drop to -24°C (-10°F) and a maximum rise to 4°C (40°F). With 124 mm (4.9 in) of precipitation across 15 days and an average humidity of 90%, be prepared for a wintry mix that adds a touch of magic to this frigid month.
In December in San Giovanni, the average temperature is -7°C (20°F), with maximums reaching up to 4°C (40°F) and minimums dipping as low as -24°C (-10°F). It's essential to prepare for cold weather when traveling during this time.
In San Giovanni in December, the total precipitation amount is 124 mm (4.9 in) over a period of 15 days.
In San Giovanni in December, humidity is 90%. With an average temperature of -7°C (20°F), this humidity feels like an oppressive chill that seeps into your bones, making travel uncomfortable and your breath visible in the frosty air.
In San Giovanni in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in San Giovanni, you can visit Hourly UV Index in San Giovanni.
UV Risk Categories
Weather in San Giovanni varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Giovanni, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 82 mm (3.2 inches) | 93% | low |
| February Weather | -5°C (23°F) | 67 mm (2.6 inches) | 89% | moderate |
| March Weather | -3°C (27°F) | 84 mm (3.3 inches) | 86% | high |
| April Weather | 1°C (33°F) | 82 mm (3.2 inches) | 83% | very high |
| May Weather | 5°C (41°F) | 145 mm (5.7 inches) | 78% | very high |
| June Weather | 11°C (52°F) | 145 mm (5.7 inches) | 79% | very high |
| July Weather | 12°C (53°F) | 171 mm (6.7 inches) | 82% | very high |
| August Weather | 12°C (54°F) | 202 mm (7.9 inches) | 80% | very high |
| September Weather | 8°C (46°F) | 124 mm (4.9 inches) | 83% | high |
| October Weather | 3°C (38°F) | 115 mm (4.5 inches) | 90% | moderate |
| November Weather | -2°C (29°F) | 114 mm (4.5 inches) | 89% | moderate |
| December Weather | -7°C (20°F) | 124 mm (4.9 inches) | 90% | low |